Focal runs on KIM-1 Simulator

KIM-1 Simulator version 1.1.6 has been published. Get it here.

It now supports Focal-V3D 12-AUG-77 (the Aresco version) from the KIM-1 Software page, see here.

Updates to the Simulator are a working echo suppression (see here for background). Available to any program.

For Focal V3D a setting has to be made in the Settings, to allow Focal to do its magic in the input routine.

By working on Focal I did add comments to the disassembly of what I found. You will find the original by Paul R. Santa-Marie and my partly commented version in the archive.

Testing the 6530-002 RRIOT with a KIM-1

This article is written by Jeff M. Nay, about his experiments to restore a KIM-1 to working order. The challenge was to address the second 6530-002 in this setup at another address then the onboard 6530-002 RRIOT.The experiment was a success, the 6530-002 is indeed in a bad state, the ROM is corrupt and it had to be replaced.The KIM-1, from a friend, was in a bad state. The repair was a success also. He was able to get this old KIM-1 working again, after only having to replace, the 6502 CPU, the 6530-002 RRIOT Chip with a Corsham 6530 Replacement board, all 8 Memory Chips and the U17 7406 inverter. Read the article here

KIM-1 and TIM updates

I have added the following to the KIM-2 KIM-3-KIM-4 KIM-5 KIM-6 pages:

– brochure with photos and descriptions and pricelist KIM System Products
– photos of KIM-2 and KIM4 with KIM-4 motherboard with KIM-3b, KIM-5, KIM-6
– brochure TIM System Development Aid with pricelist

The brochure of KIM-5 etc is from Commodore, the KIM-2 RAM was already dropped for a higher capacity KIM-3B. The KIM-5 was still mentioned as product. Alas I have never seen or heard of a KIM-5 in the hands of a user. So the ROMS are lost alas.

KIM-4 with KIM-3B, KIM-5, KIM-6

Lost pages of Andrew Jacobs

The late Andrew Jacobs set up a web site with relevant 6502 information. It is lost now.

This site is reproduced here. Scripts and links are removed, it is clean code now.

Also have a look at his github archive, it is still up.

Enter the local hosted Andrew Jacobs 6502 site here!

macOS compiled version of KIM-1 Simulator

Thanks to user hobo of https://groups.google.com/g/pal6502 a macOS compiled app is now included.

KIM-1 Circuit Diagram high resolution poster, cleaned up again

A couple of weeks I published the KIM-1 Circuit Diagram in high resolution, cleaned up by Joshy of Forum64.

Since then I saw people print the poster, and I did have myself made a mouse mat and a poster in KIM-1 format.

To let the printing company do its work I made two new versions of the poster:

  • KIM-1 Circuit Diagram in high resolution, cleaned up by Joshy of Forum64 and cleaned up again by me (year 1975, some artefacts
  • KIM-1 Circuit Diagram in high resolution, cleaned up with wide borders (for canvas prints)

Look at the KIM-1 Manuals page for those new, large files images.

AIM 65 Assembler ROM R3224 source

On the pagetable Commodore source archive I found the source of the AIM 65 Assembler ROM R3224.

Now on the AIM 65 software page:

Assembler ROM R3224 source from pagetable github

Who were involved in the development of KIM-1 and TIM?

The 6530-002 (the KIM monitor), 6530-003 (the KIM tape routines) and 6530-004 (TIM, the teletype monitor) are in the ROM of these IC’s. Developed in/for/by MOS Technology.

For TIM the Story of TIM (DEMON as Ray Holt called it) tells about Manny Lomas.

It would be nice to know more who did hardware and software design for the KIM-1 (must have been a small team since they are so intertwined) of these innovative early 6502 development.

The story should start with Chuck Peddle and his team. They developed the 6502 and supporting IC’s like 6530 (RRIOT) and 6532 (RIOT).

The story of KIM talks about Don McLaughlin, MOS Technology founder and engineering manager of the project. Peddle and a programming manager named Bob Winterhalt agreed with the idea and the three men began the design. According to MOS Technology employee Al Charpentier, John May did the actual design.

Data Handler

Armin added to his blog page on the Data Handler a Rev Manual with his permission reproduced here.